9 commits

Author	SHA1	Message	Date
larryruili	fa989e754b	Add sharded DNS publishing capability ... This enables sharded DNS publishing on a per-TLD basis. Instead of a TLD-wide lock, the sharded scheme locks each update on the shard number, allowing parallel writes to DNS. We allow N (the number of shards) to be 0 or 1 for no sharding, and N > 1 for an N-way sharding scheme. Unless explicitly set, all TLDs default to a numShards of 0, so we don't have to reload all registry objects explicitly. WARNING: This will change the lock name upon deployment for the PublishDnsAction from "<TLD> Dns Updates" to "<TLD> Dns Updates shard 0". This may cause concurrency issues if the underlying DNSWriter is not parallel-write tolerant (currently all production usages are ZonemanWriter, which is parallel-tolerant, so no issues are expected). ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=187525655	2018-03-06 19:14:26 -05:00
guyben	6e4b2bd6a8	Add metric for DNS UPDATE latency ... Added: - dns/update_latency, which measures the time since a DNS update was added to the pull queue until that updates is committed to the DnsWriter - - It doesn't check that after being committed, it was actually published in the DNS. - dns/publish_queue_delay, which measures how long since the initial insertion to the push queue until a publishDnsUpdate action was handled. It measures both for successes (which is what we care about) and various failures (which are important because the success for that publishDnsUpdate will be > than any of the previous failures) ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=185995678	2018-02-20 15:54:15 -05:00
guyben	bf321ca044	Add label for the DnsWriter in the publishDnsUpdates metrics ... This allows grouping metrics based on the DnsWriter. We can already group by the TLD, but since a TLD can have multiple writers, and since different writers perform very differently from one another, it could be important to group by writer as well. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=182255398	2018-01-19 14:53:21 -05:00
jianglai	07622725bf	Move metrics dependencies to artifacts under Maven groupId com.google.monitoring-client ... ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=180580386	2018-01-04 17:12:35 -05:00
guyben	d577a281b8	Add stackdriver metrics to publishDnsUpdates ... Adding the following metrics: - how long does an update take, per TLD - number of domains published, per TLD - number of hosts published, per TLD All are distributions. ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=172933834	2017-10-24 16:53:47 -04:00
mmuller	b70f57b7c7	Update copyright year on all license headers ... ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=146111211	2017-02-02 16:27:22 -05:00
shikhman	f76bc70f91	Preserve test logs and test summary output for Kokoro CI runs ... ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=135494972	2016-10-14 16:57:43 -04:00
jart	b77ebd1df9	Don't use modules to instantiate classes ... ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=132380251	2016-09-07 12:17:58 -04:00
shikhman	1c5b4e16c6	Add metrics to PublishDnsUpdatesAction ... ------------- Created by MOE: https://github.com/google/moe MOE_MIGRATED_REVID=131190862	2016-08-26 09:43:30 -04:00